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Date:18 JUN 1972
Flight BE548 took off from Heathrow
runway 28R in rainy weather (including some turbulence) at 16.08h.
At 16.10:24 (50sec. after rotation), the droops (wing leading edge slats) were retracted.
The aircraft was climbing through 1770ft with a speed of 162kts
(300km/h). The minimum droop-retraction speed however, is 225kts.
The Trident stalled and started to descent.
The airspeed dropped to 54kts and the aircraft crashed into a
field next to the A30 motorway at 16.11:00 GMT.
PROBABLE CAUSE:
Immediate causes were:
1) Failure by PIC to achieve and maintain adequate speed after
noise-abatement procedures;
2) Droop-retraction 60kts below minimum speed.;
3) Failure to monitor speed error and to observe droop lever
movement.;
4) Failure to diagnose reason for stick-pusher operation and
warnings;
5) Operation of stall recovery override lever. A factors was
a.o. the abnormal heart condition of the captain.
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Date:
18 JUN 1972
Time:
16.11 GMT
Type:
Hawker Siddeley HS-121 Trident 1C
Operator:
British European Airways - BEA
Registration:
G-ARPI
Msn / C/n:
2109
Year built:
1964
Crew:
9 fatalities / 9 on board
Passengers:
109 fatalities / 109 on board
Total:
118 fatalities / 118 on board
Location:
near Staines (UK)
Phase:
Initial Climb
Nature:
International Scheduled Passenger
Departure airport:
London-Heathrow Airport (LHR)
Destination airport:
Brussel-Zaventem Airport (BRU)
Flightnumber:
548
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